Tracheostomy valve



FIG. 1 is a top, front and side perspective view of a tracheostomy valve embodying the new design.

FIG. 2 is a bottom, back and side perspective view thereof.

FIG. 3 is a top view thereof.

FIG. 4 is a bottom view thereof; and,

FIG. 5 is a side view thereof, the opposite side, the front and the back all being identical.

Broken lines are used to illustrate portions of the tracheostomy valve which form no part of the claimed design. 

CLAIM The ornamental design for a tracheostomy valve, as shown and described. 